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Chrome Tourmaline and Fayalite Optical Properties


Fayalite and Chrome Tourmaline Optical Properties


Optical Properties

Luster
Vitreous   
Vitreous, Resinous   

Pleochroism
Not Available   
Faint   

Dispersion
Not Available   
Not Available   

Transparency
Transparent, Translucent   
TransparentAnthony et al, Handbook of mineralogy (2001)   

Refractive Index
1.614-1.666   
1.827-1.879   

Optic Character
Not Available   
Not Available   

Crystal System
Hexagonal   
Orthorhombic   

Birefringence
0.014-0.040   
0.042-0.051   

Clarity
Transparent   
TransparentAnthony et al   

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Chrome Tourmaline and Fayalite Optic Character

Chrome Tourmaline and Fayalite optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Chrome Tourmaline and Fayalite Physical Properties like crystallographic symmetry, pleochroism,etc. in the crystal. Some of the optical properties are refractive index, luster, optic character, pleochroism etc. Prominent among these is Chrome Tourmaline and Fayalite optic character. You might have noticed your gemologist rotating the gemstone while testing it. Rotating a gemstone along its optic axis helps in determining its optic character.

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Chrome Tourmaline and Fayalite Transparency

Similar to their colors, Chrome Tourmaline and Fayalite transparency can also be used as criteria for their primary identification. Although transparency cannot be the only criteria for gemstone identification, it can efficiently used in gemstone grading. Talking about their transparency, Chrome Tourmaline is Translucent and Transparent while Chrome Tourmaline is Translucent and Transparent in appearance.

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